P188A-98: Differential Oil Temperature Too High/Too Low - Component or system over temperature: Action
NOTE:
This DTC may be induced by excessive electric differential clutch operation due to prolonged off road or track driving.
- Refer to the relevant service information and check the electric differential fluid level. Rectify any fluid leaks and add fluid as necessary
- Check the specification of the electric differential fluid. Rectify as necessary
- Inspect the rear differential fluid temperature sensor connectors for signs of water ingress and pins for damage and/or corrosion
- Refer to the electrical circuit diagrams and check the rear differential fluid temperature sensor signal circuit for high resistance. Repair the wiring harness as necessary